Particle blast apparatus



FIG. 1 is a top, front left perspective view of a particle blast apparatus, showing our new design;

FIG. 2 is a left elevation view thereof;

FIG. 3 is a right elevation view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The evenly-spaced broken lines in the drawings are included for purpose of illustrating portions of the particle blast apparatus that form no part of the claimed design. The dot-dash-dot broken lines in the drawings are included for the purpose of defining the boundary of the claim, it being understood that the region between the dot-dash-dot broken lines and the dot-dash-dot broken lines themselves form no part of the claimed design. 

CLAIM The ornamental design for a particle blast apparatus, as shown and described. 